Unwanted Thoughts. Was another person.

I've been experiencing unwanted thoughts related to cheating. I don't want to cheat. Most recent thought: I was imagining I wanted to be hugged on the waist by my boyfriend, and then the thought suddenly was telling me that the person wasn't my boyfriend (told me someone else's name that I also know). But I still imagined deciding to drag the hand to my waist (but doesn't mean that I wanna be hugged by another person). Then I tried to identify the person's face, it tried to change the face to my boyfriend's face. Then I didn't wanna get hugged anymore (but doesn't mean that I don't wanna be hugged by my boyfriend). In that thought, the person wasn't my boyfriend, or another person whose name was said either, because the face was unidentified. I don't want to get hugged by other people or certain person that's not my boyfriend but I don't know why I was still deciding to drag the person's hand to my waist in that thought when the bad thought had told me the person was another person.